isa/rv32ui/fence_i.S

   1 # See LICENSE for license details.
   2
   3 #*****************************************************************************
   4 # fence_i.S
   5 #-----------------------------------------------------------------------------
   6 #
   7 # Test self-modifying code and the fence.i instruction.
   8 #
   9
  10 #include "riscv_test.h"
  11 #include "test_macros.h"
  12
  13 RVTEST_RV32U
  14 RVTEST_CODE_BEGIN
  15
  16 li a3, 111
  17 la a0, 3f
  18 la a1, 1f
  19 la a2, 2f
  20 lw a0, 0(a0)
  21
  22 # test I$ hit
  23 .align 6
  24 sw a0, 0(a1)
  25 fence.i
  26
  27 1: addi a3, a3, 222
  28 TEST_CASE( 2, a3, 444, nop )
  29
  30 # test prefetcher hit
  31 li a4, 100
  32 1: addi a4, a4, -1
  33 bnez a4, 1b
  34
  35 sw a0, 0(a2)
  36 fence.i
  37
  38 .align 6
  39 2: addi a3, a3, 555
  40 TEST_CASE( 3, a3, 777, nop )
  41
  42 3: addi a3, a3, 333
  43
  44 TEST_PASSFAIL
  45
  46 RVTEST_CODE_END
  47
  48   .data
  49 RVTEST_DATA_BEGIN
  50
  51   TEST_DATA
  52
  53 RVTEST_DATA_END